fs/9p/acl.c

15 #include "acl.h"
24 	struct posix_acl *acl = NULL;
38 		acl = ERR_PTR(size);
40 		acl = ERR_PTR(-ENODATA);
42 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
44 	return acl;
50 	struct posix_acl *acl = NULL;
56 	acl = v9fs_fid_get_acl(fid, name);
58 	return acl;
64 	struct posix_acl *acl = NULL;
66 	acl = v9fs_fid_get_acl(fid, name);
67 	if (!IS_ERR(acl))
68 		return acl;
70 	retval = PTR_ERR(acl);
91 	/* get the default/access acl values and cache them */
112 	struct posix_acl *acl;
114 	 * 9p Always cache the acl value when
117 	acl = get_cached_acl(inode, type);
118 	BUG_ON(is_uncached_acl(acl));
119 	return acl;
133 		 * On access = client  and acl = on mode get the acl
148 	/* We allow set/get/list of acl when access=client is not specified. */
155 		     struct posix_acl *acl, int type)
164 	if (acl) {
165 		retval = posix_acl_valid(inode->i_sb->s_user_ns, acl);
169 		size = posix_acl_xattr_size(acl->a_count);
177 		retval = posix_acl_to_xattr(&init_user_ns, acl, value, size);
205 		if (acl) {
207 			struct posix_acl *acl_mode = acl;
233 			retval = acl ? -EINVAL : 0;
241 		set_cached_acl(inode, type, acl);
248 static int v9fs_set_acl(struct p9_fid *fid, int type, struct posix_acl *acl)
255 	if (!acl)
259 	size = posix_acl_xattr_size(acl->a_count);
263 	retval = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
285 	struct posix_acl *acl;
289 	acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
290 	if (acl) {
291 		retval = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
294 		set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
295 		retval = v9fs_set_acl(fid, ACL_TYPE_ACCESS, acl);
296 		posix_acl_release(acl);
302 			struct posix_acl *dacl, struct posix_acl *acl)
305 	set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
307 	v9fs_set_acl(fid, ACL_TYPE_ACCESS, acl);
312 		  struct posix_acl *acl)
315 	posix_acl_release(acl);
323 	struct posix_acl *acl = NULL;
326 		acl = v9fs_get_cached_acl(dir, ACL_TYPE_DEFAULT);
327 		if (IS_ERR(acl))
328 			return PTR_ERR(acl);
329 		if (!acl)
332 	if (acl) {
334 			*dpacl = posix_acl_dup(acl);
335 		retval = __posix_acl_create(&acl, GFP_NOFS, &mode);
339 			*pacl = acl;
341 			posix_acl_release(acl);